Explanation

Given numbers. of molecules are, 3.01 *10^22 so

using the formula:

no. of mole = given no. of molecule /avagadro no.

so, here

no of mole. = 3.01*10´22/ 6.022*10´23

0.04998339422 mole.

Explanation

Plastid are of the following 3 types.

1. Leucoplasts

2. Chromoplasts 

3. Chloroplasts

AGM 25-12-2022

Explanation

Hooke's law states that the applied force F equals a constant k times the displacement or change in length x, or F = kx.

AGM 25-12-2022

Explanation

The extraction of metals and their isolation occurs over a few major steps:

وہ اقدامات دھاتوں کو نکالنے کے لیے استعمال کیے جاتے ہیں۔

Concentration of Ore – Here the ore is separated from earthy impurities.

Isolation of metal from concentrated Ore – Here the ore is converted to its oxide form and then reduced. The steps involved are either calcination or roasting and then heating with a reducing agent.

Purification of the metal – Here the metal is purified for practical purposes.

Explanation

Carbonic Acid is present in our stomach and part of the digestive process.

Carbonic Acid doesn't contain C-H bond and therefore, it is not an organic acid.

AGM 25-12-2022

Explanation

Chitin creates the cell wall in fungi.

Chitin works much like cellulose that creates the cell walls of other plants.

Explanation

360 watts is the correct answer.

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AGM 25-12-2022